Maybe. Hi. If you get most of your vit. D from your diet (instead of from sun exposure), malabsorption can cause vit. D deficiency. So causes of malabsorption are associated with diarrhea, so there can be a connection. In general, I'd say chronic diarrhea needs a good work up by a gastroenterologist. Good luck!

No. No. Chances are this is supply and demand at work. You get vitamin D through the sun on your untanned unprotected skin, through supplements and in certain foods. Vitamin D is used in the operation of about 350 genes, included many detoxification reactions. .

Need to examine. It is not feasible to provide a meaningful opinion without examining you and doing some tests and may be imaging studies. There are disorders that are just as bad as some cancers. It would be prudent to see your doctor for an evaluation and appropriate treatment.
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While there is some. ..evidence that vitamin D may be related to immune function, I can't find any specific reports of hives related to vitamin D deficiency (although there are a tremendous number of unexpected signs and symptoms of vitamin D deficiency not previously appreciated!). Work with your doctor to replace/normalize your vitamin D level. A surprising benefit may be an improvement in your hives. Good wishes:)
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Not likely. Vitamin D deficiency is not likely to cause nausea. If you are deficient, as attested to by a blood test, you should take about 5000 units of vitamin D3 for about 6 months to make up the deficit.
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Possible/unlikely. It is possible that very severe d deficiency can lead to weakness due to either deficiency in calcium or phosphorous -- but i doubt it would be sufficiently severe to be confused with chronic fatigue syndrome. D levels are easy to check and remedy w/replacement.
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Different issues. Vitamin d deficiency is common in the us due low exposure to sun, low milk consumption and obesity. If you are deficient in vitamin d you can take over the counter supplement. Exercise intolerance can be due to many causes from lack of physical activity to many systemic disorders and you should consult your doctor.
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Likely. One recent study showed vitamin d deficiency to be linked to depression in a small group of women between 42 and 66 years of age. After that the guidelines for daily intake of vitamin d were raised top 600 units/day for adults under 70. However, be aware that there are many other causes for depression which could be present in the same person, including thyroid disease, diabetes, stress and so on.
Read more...

Need to examine. It is not feasible to provide a meaningful opinion without examining you and doing some tests and may be imaging studies. There are disorders that are just as bad as some cancers. It would be prudent to see your doctor for an evaluation and appropriate treatment.
Read more...

While there is some. ..evidence that vitamin D may be related to immune function, I can't find any specific reports of hives related to vitamin D deficiency (although there are a tremendous number of unexpected signs and symptoms of vitamin D deficiency not previously appreciated!). Work with your doctor to replace/normalize your vitamin D level. A surprising benefit may be an improvement in your hives. Good wishes:)
Read more...

Not likely. Vitamin D deficiency is not likely to cause nausea. If you are deficient, as attested to by a blood test, you should take about 5000 units of vitamin D3 for about 6 months to make up the deficit.
Read more...

Possible/unlikely. It is possible that very severe d deficiency can lead to weakness due to either deficiency in calcium or phosphorous -- but i doubt it would be sufficiently severe to be confused with chronic fatigue syndrome. D levels are easy to check and remedy w/replacement.
Read more...

Different issues. Vitamin d deficiency is common in the us due low exposure to sun, low milk consumption and obesity. If you are deficient in vitamin d you can take over the counter supplement. Exercise intolerance can be due to many causes from lack of physical activity to many systemic disorders and you should consult your doctor.
Read more...

Likely. One recent study showed vitamin d deficiency to be linked to depression in a small group of women between 42 and 66 years of age. After that the guidelines for daily intake of vitamin d were raised top 600 units/day for adults under 70. However, be aware that there are many other causes for depression which could be present in the same person, including thyroid disease, diabetes, stress and so on.
Read more...